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Find location of a removable SD card

...question is about external SD. How to get a path like "/mnt/sdcard/external_sd" (it may differ from device to device)? Android has no concept of "external SD", aside from external storage, as described above. If a device manufacturer has elected to have external storage be on-board flash and also h...
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How can I get query string values in JavaScript?

...query strings with string keyed values. You might want to try locutus/parse_str console.log(new URLSearchParams('a=b&c=d').toString()); // a=b&c=d console.log(new URLSearchParams('a=b&c=d').get('a')); // b console.log(new URLSearchParams('filters[a]=b&filters[c]=d').toString()); // f...
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Alarm Manager Example

...anifest.xml: ... <uses-permission android:name="android.permission.WAKE_LOCK"></uses-permission> ... <receiver android:process=":remote" android:name=".Alarm"></receiver> ... Code in your class: package yourPackage; import android.app.AlarmManager; import android.app.Pend...
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SQL Server Script to create a new user

...AdminName WITH PASSWORD = 'ABCD' GO Here is how you create a User with db_owner privileges using the Login you just declared: Use YourDatabase; GO IF NOT EXISTS (SELECT * FROM sys.database_principals WHERE name = N'NewAdminName') BEGIN CREATE USER [NewAdminName] FOR LOGIN [NewAdminName] ...
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When should I use malloc in C and when don't I?

... char *some_memory = "Hello World"; is creating a pointer to a string constant. That means the string "Hello World" will be somewhere in the read-only part of the memory and you just have a pointer to it. You can use the string as rea...
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Entity Framework VS LINQ to SQL VS ADO.NET with stored procedures? [closed]

... the only one (NHibernate, ActiveRecord) http://en.wikipedia.org/wiki/List_of_object-relational_mapping_software to address the specific questions: Depends on the quality of the O/RM solution, L2S is pretty good at generating SQL This is normally much faster using an O/RM once you grok the proce...
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What's the difference between EscapeUriString and EscapeDataString?

...)*+,;= For completeness, the unreserved characters are alphanumeric and -._~ Both methods escape characters that are neither reserved nor unreserved. I disagree with the general notion that EscapeUriString is evil. I think a method that escapes only illegal characters (such as spaces) and not res...
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Strings as Primary Keys in SQL Database [closed]

... @Tom H: ISO County codes DO change. [ en.wikipedia.org/wiki/ISO_3166-1#Editions_and_changes ] As an answer on a related question said [ stackoverflow.com/questions/925266/… ] "For PRIMARY KEY's make sure their uniqueness is under your control" – Steve Schnepp ...
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When should we use mutex and when should we use semaphore

...used for one thread to signal another thread to run. /* Task 1 */ pthread_mutex_lock(mutex_thing); // Safely use shared resource pthread_mutex_unlock(mutex_thing); /* Task 2 */ pthread_mutex_lock(mutex_thing); // Safely use shared resource pthread_mutex_unlock(mutex_thing); // unlock mut...
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scala vs java, performance and memory? [closed]

...he most compact way to do the same thing is: val bigEnough = array.filter(_.length > 2).flatMap(mapping.get) Easy! But, unless you're fairly familiar with how the collections work, what you might not realize is that this way of doing this created an extra intermediate array (with filter), and...